Well, there's a few restaurants nearby. There's some inexpensive options (Denny's IHOP, Subway), but the ramen-budget crowd usually overruns them. Spend some time on Google Maps and figure out where you want to eat. There's a lot of places to choose from.

If you're staying at the Westin Bonaventure, their 6-floor lobby is a mini-mall with a Subway, karaoke, and other restaurants both expensive and mom-and-pop stands.

There's a Lucky Strike Bowl at L.A. Live. It's an adult couture bowling alley/bar, so there's a dress code and they cost a bit.

Little Tokyo is a $12 cab ride from the area. It's a slice of another country in Los Angeles. Some people recommend walking, I don't. There's a depreciated area between the Financial District and Little Tokyo known as "Skid Row" that's full of homeless and a few crackheads wandering around.

I'm working on putting together a block of rooms and group dinners for everyone who wants to so we can sit around and chat a bit. If you're interested in meeting up, send me a PM and we'll keep in touch!

hmmm well, the most important thing would be to keep in mind that LA isnt the safest neighborhood, just make sure you keep common sense and remember general safety precautions
like dont go out a night alone (walk with someone back to your hotel room/car), dont wander around by yourself, dot talk to strangers who are obviously not form the convention, just as you would do at any con but just be slightly more careful

yes and I would recommend meeting up with some people when you get here, that way you will have friends to help you if you may need it

the dealers room and artist alley are defiantly a must, the exhibit hall is huge and there are lots of interesting things to see

I wouldnt go for food in the convention center, its overpriced and dosnt taste very good

Due to private buses being the principle form of travel between the convention center and the hotel, make sure your outfit can fit on the bus (able to enter through the doors and comfortably be seated). If you can not then consider putting it on at the convention center itself via the bathrooms.

These are just a few helpful tips I've learned over the years.
(just realized this may also go into "Surviving a convention." Sorry for any repeats.

WEAR. COMFORTABLE. SHOES.
I cannot stress this enough.
If your feet are unhappy, YOU are unhappy.
Yours Truly made that mistake with a pair of 3" heels at her very first con. Never. Again.
I've been to multiple cons at that convention center, and I used to work the International World Trade gift shows there twice a year for my previous job. That center is enormous! Prepare to easily walk a few kilometers in the first day alone.

Snack Time!
Pocket sized snacks will work.
Protein snacks and water (electrolyte infused water is good). The food there is expensive (but the nachos are good), and the line at the Starbucks tends to not move that quickly.

Bring cash.
Most of the boothies (if not all) will accept credit cards. But, you never know about that one random booth that has the perfect manga to can't live without, yet they're having issues with their cell service and can't get the Cube to work to swipe your card. Also, the ATMs will charge at least $3 per transaction.

Prepair a personal kit.
Ladies, you know this will all end in tears if you don't keep track of the calendar...
In general, asprin will help those "I'm so excited, I can't see straight!" Disneyland-fever headaches.
Be 100% diligent in taking your medication (if you have any.)

Buddy System
This is a fickle tip...
Bring a friend, or meet at least one person that you click with and you both agree to hang out while you're there. That'll mean you're not completely alone, and you can feel less exposed when the sun goes down and you're exhausted from the whole experience. I've found that a lot of people understand the importance of this, and most people are good-hearted. Swap numbers so you can meet up between --or for--your respective panel-viewings, or game time (or karaoke). Who knows? You may wind up saying "I really enjoyed hanging out with 'so-and-so' at the con" when you recount your stories to friends and family.
The buddy system is also helpful in case of accidents.

And have fun! ^_^
Just remember that even the old-timers forget the basics, too.